Oral Health Behaviors among Schoolchildren in Western Iran: Determinants and Inequality

Figures & data

Table 1 Descriptive Characteristics and Prevalence of Good OHB Among Schoolchildren in Kermanshah City, Western Iran, 2018

	n (%)	Prevalence of Good OHB (%)
		Crude OR (95% CI)	Age-adjusted OR (95% CI)
Age	1,457 (100)	14.61 (12.89–16.53)	15.17 (13.22, 17.35)
Sex
Boys	512 (35.14)	14.25 (11.48, 17.57)	15.39 (12.15, 19.30)
Girls	945 (64.86)	14.81 (12.68, 17.23)	15.30 (12.89, 18.07)
Mother’s education
Uneducated or elementary	643 (44.13)	10.26 (8.13, 12.86)	10.39 (8.05, 13.33)
Academic degree	814 (55.87)	18.05 (15.56, 20.85)	19.33 (16.43, 22.60)
Father’s education
Uneducated or elementary	501 (34.39)	11.37 (8.87, 14.47)	12.15 (8.41, 9.07)
Academic degree	956 (65.61)	16.31 (14.10, 18.80)	16.95 (14.45, 19.78)
Sex of household head
Male	1,390 (95.40)	14.96 (13.18, 16.94)	15.53 (13.52, 17.77)
Female	67 (4.60)	7.46 (30.68, 17.04)	4.62 (2.02, 10.21)
Wealth index of households
Poorest	292 (20.04)	7.19 (4.72, 10.80)	5.78 (3.79, 8.71)
Poor	291 (19.97)	12.37 (9.03, 16.70)	14.86 (10.43, 20.73)
Middle	293 (20.11)	11.60 (8.39, 15.83)	11.97 (8.15, 17.25)
Rich	290 (19.90)	16.89 (12.98, 21.68)	16.92 (12.84,21.97)
Richest	291 (19.97)	25.08 (20.41, 30.41)	25.09 (20.29, 30.60)
IOral health of similar importance to that of rest of body
Yes	1,333 (91.6)	13.95 (12.19, 15.92)	14.34 (12.38, 16.56)
No	122 (8.4)	21.31 (14.85, 29.59)	26.12 (17.25, 37.49)

Abbreviation: OHB, oral hygiene behavior.

Table 2 Associations Between Independent Variables and Good OHB (Logistic Regression Model)

	OR
	Crude (95% CI)	p-value	Adjusted (95% CI)	p-value
Age	1.08 (0.93,1.25)	0.28	1.05 (0.91, 1.23)	0.75
Sex
Boys	1 (reference)		1 (reference)
Girls	1.04 (0.77, 1.42)	0.290	1.80 (1.26, 2.55)	0.001
Mother’s education
Uneducated or elementary	1 (reference)		1 (reference)
Academic degree	1.92 (1.41, 2.62)	0.001	1.62 (1.08, 2.41)	0.018
Father’s education
Uneducated or elementary	1 (reference)		1 (reference)
Academic degree	1.51 (1.09, 2.10)	0.012	0.80 (0.52, 1.22)	0.304
Sex of household head
Male	1 (reference)		1 (reference)
Female	0.45 (0.18, 1.15)	0.098	0.52 (0.20, 1.31)	0.163
Wealth index of households
Poorest	1 (reference)		1 (reference)
Poor	1.82 (1.03, 3.20)	0.037	1.78 (1.00, 3.17)	0.05
Middle	1.69 (0.95, 2.99)	0.070	1.69 (0.92, 3.08)	0.085
Rich	2.62 (1.52, 4.50)	0.001	2.71 (1.51, 4.88)	0.001
Richest	4.32 (2.57, 7.24)	0.001	4.87 (2.65, 8.94)	0.001
Oral health of similar importance to that of rest of body
No	1 (reference)		1 (reference)
Yes	1.67 (1.05, 2.64)		1.99 (1.23, 3.21)	0.005

Abbreviation: OHB, oral hygiene behavior.

Table 3 RCIn Values for Good OHB for Entire Sample Kermanshah City, Western Iran, 2018

	RCIn	p-value	95% CI
Whole sample	0.2582	0.001	0.1770, 0.3395
Boys	0.2745	0.001	0.1387, 0.4104
Girls	0.2798	0.001	0.1801, 0.3795

Abbreviations: OHB, oral hygiene behavior; RCIn, relative concentration index, normalized.

Figure 1 Concentration curve of good OHB for the whole samples (A), boys (B), and girls (C) in Kermanshah, western Iran, 2018.